Pixel electrode structure for a liquid crystal display with a high aperture ratio

Abstract

A pixel electrode structure for a liquid crystal display with a high aperture ratio increases the aperture ratio and eliminates Mura phenomenon. Any two adjacent pixel electrodes are disconnected to each other. Each pixel electrode comprises a first-lengthwise periphery that overlaps a first-adjacent data line to form a first overlapping portion, and a second-lengthwise periphery that overlaps a second-adjacent data line to form a second overlapping portion. The first-lengthwise periphery and the second-lengthwise periphery have an identical triangle-wave profile and are symmetrical to each other. The triangle-wave profile is formed by connecting a plurality of right-angled and equilateral triangles.

1. A liquid crystal display, comprising:
 a first substrate and a second substrate disposed parallel to each other; 
 a gate line and a data line formed on the first substrate; 
 a first pixel electrode connect with the data line via a switch element; 
 a plurality of liquid crystal molecules formed between the first substrate and the second substrate and each one having a axis direction; and 
 a polarizer formed on the exterior of the first substrate, wherein the polarizer has a light-polarization planar direction, and the axis direction of the liquid crystal molecule near the periphery of the first pixel electrode is perpendicular to the light-polarization planar direction, wherein a sidewall of the data line is a triangle-wave profile, 
 
       and the triangle-wave profile is formed by connecting a plurality of right-angled triangles, and an another sidewall of the data line is a triangle-wave profile formed by connecting a plurality of right-angled triangles,
 wherein a protrusion of the sidewall of the data line aligns with a recess of the another sidewall of the data line. 
 
     
     
       2. The liquid crystal display as claimed in  claim 1 , wherein the axis direction of the liquid crystal molecule is a long-axis direction. 
     
     
       3. The liquid crystal display as claimed in  claim 1 , wherein the sidewall of the data line is identical and symmetrical to a periphery of the first pixel electrode. 
     
     
       4. The liquid crystal display as claimed in  claim 1 , wherein a periphery of the first pixel electrode is a triangle-wave profile. 
     
     
       5. The liquid crystal display as claimed in  claim 4 , wherein the triangle-wave profile of the first pixel electrode is formed by connecting a plurality of right-angled triangles. 
     
     
       6. The liquid crystal display as claimed in  claim 4 , wherein the triangle-wave profile of the first pixel electrode is formed by connecting a plurality of equilateral triangles. 
     
     
       7. The liquid crystal display as claimed in  claim 4 , further comprising a second pixel, and the periphery of the first pixel electrode is correspond in position to a periphery of the second pixel electrode next to the first pixel electrode. 
     
     
       8. The liquid crystal display as claimed in  claim 1 , wherein the first pixel electrode has a first-lengthwise periphery that overlaps a first-adjacent data line to form a first overlapping portion. 
     
     
       9. The liquid crystal display as claimed in  claim 1 , further comprising a polarizer formed on the exterior of the second substrate. 
     
     
       10. The liquid crystal display as claimed in  claim 1 , wherein the width of the data line is about 3.about.10 μm. 
     
     
       11. A liquid crystal display, comprising:
 a first substrate and a second substrate disposed parallel to each other; 
 a gate line and a data line formed on the first substrate; 
 a first pixel electrode connect with the data line via a switch element; 
 a plurality of liquid crystal molecules formed between the first substrate and the second substrate and each one having a axis direction; and 
 a polarizer formed on the exterior of the first substrate, wherein the polarizer has a light-polarization planar direction, and the axis direction of the liquid crystal molecule near the periphery of the first pixel electrode is perpendicular to the light-polarization planar direction, wherein a periphery of the first pixel electrode is a triangle-wave profile, and the triangle-wave profile is formed by connecting a plurality of right-angled triangles, and an another periphery of the first pixel electrode is a triangle-wave profile formed by connecting a plurality of right-angled triangles, 
 wherein a protrusion of the periphery of the first pixel electrode aligns with a recess of the another periphery of the first pixel electrode. 
 
     
     
       12. The liquid crystal display as claimed in  claim 11 , further comprising a second pixel, and the periphery of the first pixel electrode is correspond in position to a periphery of the second pixel electrode next to the first pixel electrode. 
     
     
       13. The liquid crystal display as claimed in  claim 11 , wherein the axis direction of the liquid crystal molecule is a long-axis direction. 
     
     
       14. The liquid crystal display as claimed in  claim 11 , wherein a sidewall of the data line is a triangle-wave profile. 
     
     
       15. The liquid crystal display as claimed in  claim 14 , wherein the triangle-wave profile of the sidewall of the data line is formed by connecting a plurality of equilateral triangles. 
     
     
       16. The liquid crystal display as claimed in  claim 14 , wherein the sidewall of the data line is identical and symmetrical to a periphery of the first pixel electrode. 
     
     
       17. The liquid crystal display as claimed in  claim 11 , wherein the first pixel electrode has a first-lengthwise periphery that overlaps a first-adjacent data line to form a first overlapping portion. 
     
     
       18. The liquid crystal display as claimed in  claim 11 , further comprising a polarizer formed on the exterior of the second substrate.